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How do I stop gravity flow from rez/pump?
- Thread starter little-soldier
- Start date
If there's room for a barrel, there ought to be room to set your pump on top of its lid. 90° the 1 1/4" intake down thru the lid to the bottom of the barrel with a foot/check valve at the bottom to prevent loosing the prime on the pump. On the outlet side put a "T" inline and reduce it's side outlet down from 1 1/4" to a 1/4" push-in type quick fitting. Run that 1/4" line back in to the barrel, just far enough so it's inside but not below the water. You can use one of your mister heads here, to help keep the pressure up while feeding. This will break the siphon. An access hole in the barrel lid, with a smaller size submersible pump inside make adding/mixing nutes easy. An 1 1/4" union on the intake/outlet sides make it easy to disconnect and remove for the occasional barrel cleaning.
CrushnYuba
Well-known member
You need an irrigation valve! Aka solenoid valve aka sprinkler valve. Regular ole 24vac valve they sell at all hardware, plumbing home depot, irrigation places.
Do you not have an irrigation controller to plug it into? How does your pump know when to turn On? We can figure this out. But you got you give more information.
You could use a relay and a 24vac power supply to open and close the valve whenever the pump gets turned on.. But that's really kind of ass backwards
You should have a cheap ass irrigation controller that turns the valve on and the pump.
You need to describe your pump setup better. How does the pump turn on?
Do you not have an irrigation controller to plug it into? How does your pump know when to turn On? We can figure this out. But you got you give more information.
You could use a relay and a 24vac power supply to open and close the valve whenever the pump gets turned on.. But that's really kind of ass backwards
You should have a cheap ass irrigation controller that turns the valve on and the pump.
You need to describe your pump setup better. How does the pump turn on?
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CrushnYuba
Well-known member
A check valve is only going to prevent siphoning. Sounds like you are straight gravity feeding. What does your tank to pump look like? Do You have a bulkhead fitting at the bottom of your tank? Or are u sucking out of the top of the rez?
I'll get you straightened out if you describe your mess a little better. I design and install pump setups for a living.
I'll get you straightened out if you describe your mess a little better. I design and install pump setups for a living.
little-soldier
Active member
I already have a check valve and It still lets the water pass. Yes I did put a bulkhead at the bottom with a flex pipe going to the pump inlet. I am going to try (freaking CCP virus lockdown situation) to get a solenoid valve that size and we can figure this out. Wondering if I should wire it straight to the pump or just hook it up to the same GrowZone cycle timer as the pump.
little-soldier
Active member
Just watched a video and it looks like there are 2 types of solenoid valves. The one I need is the already closed valve type which opens when the power goes on and closes when the power goes off.
mme_oscar
Active member
Hey,
Esme's solution work perfectly and is easy to set up. You need your check valve to get back to is non working state. Best way to do so is to allow air to get back in your line.
I use these kind of filter set up that I find very handy. I just add a check valve after the pump to make sur pump can turn on even with minimum water in the tank.
IMHO adding an electro vane is adding a chance of failure.
Ciao
Esme's solution work perfectly and is easy to set up. You need your check valve to get back to is non working state. Best way to do so is to allow air to get back in your line.
I use these kind of filter set up that I find very handy. I just add a check valve after the pump to make sur pump can turn on even with minimum water in the tank.
IMHO adding an electro vane is adding a chance of failure.
Ciao
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CrushnYuba
Well-known member
Now we are getting somewhere. If you have a bulkhead at the bottom of the tank you are gravity feeding. Its not siphoning. You could try to run the pipe higher then your water level in your tank and then back down. and the spring check valve may then work.
I suggest using a solenoid valve. Its just the right way to do it. Close the tap. The typical solenoid valve that is used in almost every sprinkler and irrigation system in america are 24vac valves. They are sort of normally closed. To turn them on you put 24vac power to it and it opens. You take away the power and it closes.... Not exactly but basically... Really it's water pressure that opens and closes the valves. The solenoid directs the water.
I suggest using a solenoid valve. Its just the right way to do it. Close the tap. The typical solenoid valve that is used in almost every sprinkler and irrigation system in america are 24vac valves. They are sort of normally closed. To turn them on you put 24vac power to it and it opens. You take away the power and it closes.... Not exactly but basically... Really it's water pressure that opens and closes the valves. The solenoid directs the water.
little-soldier
Active member
Thank you Crushnyuba for making the distinction between siphoning and gravity feeding. You are right I should start by making the feed line higher than the water level and see if that fixes my problem. I wil test that once this crop is done in about 5 weeks. If it does not fix my problem then Ill have to use the solenoid valve which I will most likely have to order through the net.
Mme Oscar first, I am not using a regular submersible pump. I a using a JET pump and with these pumps you NEED to put the check valve BEFORE the pump. Also air in the line is not recomended with these types of pump so I am not going to try this if I have a chance to fry a 300$ pump.
Mme Oscar first, I am not using a regular submersible pump. I a using a JET pump and with these pumps you NEED to put the check valve BEFORE the pump. Also air in the line is not recomended with these types of pump so I am not going to try this if I have a chance to fry a 300$ pump.
Absolem
Active member
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My feed line is higher then my water level if you look in the pic I posted. The water still siphoned off when the pump kicked off even with one way check valve. I used to just poke a hole in the feed line at the top when I ran drip lines. Now that I use halo rings I rely on the constant pressure and the anti siphon hole messed with it.
My feed line is higher then my water level if you look in the pic I posted. The water still siphoned off when the pump kicked off even with one way check valve. I used to just poke a hole in the feed line at the top when I ran drip lines. Now that I use halo rings I rely on the constant pressure and the anti siphon hole messed with it.
CrushnYuba
Well-known member
I looked up that grozone timer and its really the wrong type of controller for your setup. You have a jetpump and a bottom bulkhead. For that you would usually use a standard irrigation controller that controls 24v solenoid valves and also has a pump start relay/master valve.
You could add a standard 1" irrigation valve and 24vac power supply to the outlet that turns on your pump. The valve you could get at your local hardware store most likely. The 24vac power supply/transformer may be a little harder to find.
The controller you have is usually used on little hobby grow submersible pumps. They pump up and out of the tank. The outlet pipe actually goes above the water level in the tank. If the pipe doesn't go above the water level, it's not siphoning. Its gravity feeding. A check valve won't stop gravity.
You could add a standard 1" irrigation valve and 24vac power supply to the outlet that turns on your pump. The valve you could get at your local hardware store most likely. The 24vac power supply/transformer may be a little harder to find.
The controller you have is usually used on little hobby grow submersible pumps. They pump up and out of the tank. The outlet pipe actually goes above the water level in the tank. If the pipe doesn't go above the water level, it's not siphoning. Its gravity feeding. A check valve won't stop gravity.
little-soldier
Active member
All the wiring with all these relay and irrigation controller sounds complicated. I know most people use these when they have an accumulator tank which I don't. Twas much easier to put a simple controller for my pump and its been working like a charm for the past 2 years. Don't see why I would complicate things when it can be done easily. My next run will be DTW so all I need is a fast solenoid valve that will open for 6 seconds every 10 minutes.
little-soldier
Active member
Exactly Absolem. I depend on a stable constant pressure so I can't use the air line method with this setup
little-soldier
Active member
120Octane, a check valve has one way so one side it works and the other it blocks the flow which would have killed my plants and pump by now. Are you sure you are talking about a check valve
CrushnYuba
Well-known member
You just use a 24vac power supply and a sprinkler valve. You plug the power supply in to the same line your pump is on. You wire the valve to the power supply. When power goes to pump it also goes to the power supply. The power supply will open the valve. When the valve stops getting power, it Will close.
A 1" solenoid valve is like 15$. They sell them in the irrigation section at hardware stores. They are just called sprinkler valves. It's what all the in ground sprinklers use.
The 24vac power supply you may have to get online. Sprinkler valves usually use a controler with the supply built in so just bare supplies without the controller aren't as common at stores. Check Amazon or eBay. It may just be called a 110vac to 24vac transformer. The last one i got was around 15$ and i think i got it at the local electrical supply house.
A 1" solenoid valve is like 15$. They sell them in the irrigation section at hardware stores. They are just called sprinkler valves. It's what all the in ground sprinklers use.
The 24vac power supply you may have to get online. Sprinkler valves usually use a controler with the supply built in so just bare supplies without the controller aren't as common at stores. Check Amazon or eBay. It may just be called a 110vac to 24vac transformer. The last one i got was around 15$ and i think i got it at the local electrical supply house.
little-soldier
Active member
Thx CrushnYuba and everyone for all the help. Much appreciated
